Search

Ching Chang

Examiner (ID: 3427, Phone: (571)272-4857 , Office: P/3748 )

Most Active Art Unit
3748
Art Unit(s)
3748, 3746
Total Applications
1871
Issued Applications
1700
Pending Applications
11
Abandoned Applications
170

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 1395256 [patent_doc_number] => 06513468 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-02-04 [patent_title] => 'Valve timing control system for internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 09/982932 [patent_app_country] => US [patent_app_date] => 2001-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 20 [patent_no_of_words] => 12356 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 322 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/513/06513468.pdf [firstpage_image] =>[orig_patent_app_number] => 09982932 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/982932
Valve timing control system for internal combustion engine Oct 21, 2001 Issued
Array ( [id] => 6043196 [patent_doc_number] => 20020166526 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-11-14 [patent_title] => 'Valve timing control system for internal combustion engine' [patent_app_type] => new [patent_app_number] => 09/982931 [patent_app_country] => US [patent_app_date] => 2001-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 12013 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 230 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0166/20020166526.pdf [firstpage_image] =>[orig_patent_app_number] => 09982931 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/982931
Valve timing control system for internal combustion engine Oct 21, 2001 Issued
Array ( [id] => 1590044 [patent_doc_number] => 06491008 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-12-10 [patent_title] => 'Variable valve timing adjustable roller rocker arm assembly' [patent_app_type] => B1 [patent_app_number] => 09/682786 [patent_app_country] => US [patent_app_date] => 2001-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 1889 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/491/06491008.pdf [firstpage_image] =>[orig_patent_app_number] => 09682786 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/682786
Variable valve timing adjustable roller rocker arm assembly Oct 17, 2001 Issued
Array ( [id] => 6204771 [patent_doc_number] => 20020069846 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-06-13 [patent_title] => 'Compact hydraulic lash adjuster' [patent_app_type] => new [patent_app_number] => 09/976487 [patent_app_country] => US [patent_app_date] => 2001-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2893 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0069/20020069846.pdf [firstpage_image] =>[orig_patent_app_number] => 09976487 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/976487
Compact hydraulic lash adjuster Oct 11, 2001 Issued
Array ( [id] => 1190026 [patent_doc_number] => 06729280 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-05-04 [patent_title] => 'Reference position learning apparatus and method of a variable valve-timing controlling system' [patent_app_type] => B2 [patent_app_number] => 09/975073 [patent_app_country] => US [patent_app_date] => 2001-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 6319 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/729/06729280.pdf [firstpage_image] =>[orig_patent_app_number] => 09975073 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/975073
Reference position learning apparatus and method of a variable valve-timing controlling system Oct 11, 2001 Issued
Array ( [id] => 1507883 [patent_doc_number] => 06470842 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2002-10-29 [patent_title] => 'Lever-type cam follower' [patent_app_type] => B2 [patent_app_number] => 09/975610 [patent_app_country] => US [patent_app_date] => 2001-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 2059 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/470/06470842.pdf [firstpage_image] =>[orig_patent_app_number] => 09975610 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/975610
Lever-type cam follower Oct 10, 2001 Issued
Array ( [id] => 1389890 [patent_doc_number] => 06520134 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-02-18 [patent_title] => 'Screen printable foam coating for sealing and vibration isolation of cam cover baffles' [patent_app_type] => B1 [patent_app_number] => 09/976084 [patent_app_country] => US [patent_app_date] => 2001-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2787 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/520/06520134.pdf [firstpage_image] =>[orig_patent_app_number] => 09976084 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/976084
Screen printable foam coating for sealing and vibration isolation of cam cover baffles Oct 10, 2001 Issued
Array ( [id] => 1570314 [patent_doc_number] => 06467445 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-10-22 [patent_title] => 'Deactivation and two-step roller finger follower having a slider bracket' [patent_app_type] => B1 [patent_app_number] => 09/970234 [patent_app_country] => US [patent_app_date] => 2001-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3995 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/467/06467445.pdf [firstpage_image] =>[orig_patent_app_number] => 09970234 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/970234
Deactivation and two-step roller finger follower having a slider bracket Oct 2, 2001 Issued
Array ( [id] => 757206 [patent_doc_number] => 07011053 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-03-14 [patent_title] => 'Controller for controlling opening and closing of an intake valve of an engine' [patent_app_type] => utility [patent_app_number] => 10/398182 [patent_app_country] => US [patent_app_date] => 2001-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4623 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/011/07011053.pdf [firstpage_image] =>[orig_patent_app_number] => 10398182 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/398182
Controller for controlling opening and closing of an intake valve of an engine Sep 27, 2001 Issued
Array ( [id] => 1216460 [patent_doc_number] => 06701876 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-03-09 [patent_title] => 'Electromechanical engine valve actuator system with reduced armature impact' [patent_app_type] => B2 [patent_app_number] => 09/965227 [patent_app_country] => US [patent_app_date] => 2001-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2118 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/701/06701876.pdf [firstpage_image] =>[orig_patent_app_number] => 09965227 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/965227
Electromechanical engine valve actuator system with reduced armature impact Sep 26, 2001 Issued
Array ( [id] => 1507880 [patent_doc_number] => 06470841 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2002-10-29 [patent_title] => 'Valve operating system for internal combustion engines' [patent_app_type] => B2 [patent_app_number] => 09/963794 [patent_app_country] => US [patent_app_date] => 2001-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3854 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/470/06470841.pdf [firstpage_image] =>[orig_patent_app_number] => 09963794 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/963794
Valve operating system for internal combustion engines Sep 26, 2001 Issued
Array ( [id] => 1372985 [patent_doc_number] => 06536387 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-03-25 [patent_title] => 'Electromechanical engine valve actuator system with loss compensation controller' [patent_app_type] => B1 [patent_app_number] => 09/965228 [patent_app_country] => US [patent_app_date] => 2001-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 2649 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/536/06536387.pdf [firstpage_image] =>[orig_patent_app_number] => 09965228 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/965228
Electromechanical engine valve actuator system with loss compensation controller Sep 26, 2001 Issued
Array ( [id] => 1389911 [patent_doc_number] => 06520135 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-02-18 [patent_title] => 'Apparatus for adjusting valve lift' [patent_app_type] => B2 [patent_app_number] => 09/962343 [patent_app_country] => US [patent_app_date] => 2001-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 64 [patent_no_of_words] => 11682 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/520/06520135.pdf [firstpage_image] =>[orig_patent_app_number] => 09962343 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/962343
Apparatus for adjusting valve lift Sep 25, 2001 Issued
Array ( [id] => 1397492 [patent_doc_number] => 06510825 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-01-28 [patent_title] => 'Internal combustion engine for motor vehicles and the like' [patent_app_type] => B2 [patent_app_number] => 09/960478 [patent_app_country] => US [patent_app_date] => 2001-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4122 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/510/06510825.pdf [firstpage_image] =>[orig_patent_app_number] => 09960478 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/960478
Internal combustion engine for motor vehicles and the like Sep 23, 2001 Issued
Array ( [id] => 6391813 [patent_doc_number] => 20020035981 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-03-28 [patent_title] => 'Timing chain lubricating system for engine' [patent_app_type] => new [patent_app_number] => 09/953234 [patent_app_country] => US [patent_app_date] => 2001-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 9969 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0035/20020035981.pdf [firstpage_image] =>[orig_patent_app_number] => 09953234 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/953234
Timing chain lubricating system for engine Sep 16, 2001 Issued
Array ( [id] => 611557 [patent_doc_number] => 07146949 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-12-12 [patent_title] => 'Valve control apparatus' [patent_app_type] => utility [patent_app_number] => 10/474156 [patent_app_country] => US [patent_app_date] => 2001-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6221 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 329 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/146/07146949.pdf [firstpage_image] =>[orig_patent_app_number] => 10474156 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/474156
Valve control apparatus Sep 13, 2001 Issued
Array ( [id] => 1590063 [patent_doc_number] => 06491012 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2002-12-10 [patent_title] => 'Rocker arm assembly having a spring clip valve guide' [patent_app_type] => B2 [patent_app_number] => 09/952008 [patent_app_country] => US [patent_app_date] => 2001-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2038 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/491/06491012.pdf [firstpage_image] =>[orig_patent_app_number] => 09952008 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/952008
Rocker arm assembly having a spring clip valve guide Sep 10, 2001 Issued
Array ( [id] => 7453973 [patent_doc_number] => 20040094105 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-05-20 [patent_title] => 'Method for simultantaneously moving cam shafts of various cylinder banks pertaining to an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/381619 [patent_app_country] => US [patent_app_date] => 2003-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3542 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 43 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0094/20040094105.pdf [firstpage_image] =>[orig_patent_app_number] => 10381619 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/381619
Method for simultaneously moving cam shafts of various cylinder banks pertaining to an internal combustion engine Aug 27, 2001 Issued
Array ( [id] => 1281779 [patent_doc_number] => 06631701 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-10-14 [patent_title] => 'Camshaft lubrication system' [patent_app_type] => B2 [patent_app_number] => 09/919082 [patent_app_country] => US [patent_app_date] => 2001-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 5304 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/631/06631701.pdf [firstpage_image] =>[orig_patent_app_number] => 09919082 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/919082
Camshaft lubrication system Jul 30, 2001 Issued
Array ( [id] => 6027441 [patent_doc_number] => 20020017257 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-02-14 [patent_title] => 'Control unit for adjusting the angle of rotation of a camshaft' [patent_app_type] => new [patent_app_number] => 09/916489 [patent_app_country] => US [patent_app_date] => 2001-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2888 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0017/20020017257.pdf [firstpage_image] =>[orig_patent_app_number] => 09916489 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/916489
Control unit for adjusting the angle of rotation of a camshaft Jul 25, 2001 Issued
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